4353b7ffba
Vulkan backend has recently switched to a render graph approach. Many code was left so we could develop the render graph beside the previous implementation. Last week we removed the switch. This PR will remove most of the unused code. There might be some left and will be removed when detected. Pull Request: https://projects.blender.org/blender/blender/pulls/123422
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*
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* Mimics old style OpenGL immediate mode drawing.
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*/
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#include "vk_immediate.hh"
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#include "vk_backend.hh"
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#include "vk_data_conversion.hh"
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#include "vk_framebuffer.hh"
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#include "vk_state_manager.hh"
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namespace blender::gpu {
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VKImmediate::VKImmediate() {}
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VKImmediate::~VKImmediate() {}
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uchar *VKImmediate::begin()
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{
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VKContext &context = *VKContext::get();
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const VKWorkarounds &workarounds = VKBackend::get().device.workarounds_get();
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vertex_format_converter.init(&vertex_format, workarounds);
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const size_t bytes_needed = vertex_buffer_size(&vertex_format_converter.device_format_get(),
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vertex_len);
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const bool new_buffer_needed = !has_active_resource() || buffer_bytes_free() < bytes_needed;
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std::unique_ptr<VKBuffer> &buffer = tracked_resource_for(context, new_buffer_needed);
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current_subbuffer_len_ = bytes_needed;
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uchar *data = static_cast<uchar *>(buffer->mapped_memory_get());
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return data + subbuffer_offset_get();
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}
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void VKImmediate::end()
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{
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BLI_assert_msg(prim_type != GPU_PRIM_NONE, "Illegal state: not between an immBegin/End pair.");
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if (vertex_idx == 0) {
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return;
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}
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if (vertex_format_converter.needs_conversion()) {
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/* Determine the start of the subbuffer. The `vertex_data` attribute changes when new vertices
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* are loaded.
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*/
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uchar *data = static_cast<uchar *>(active_resource()->mapped_memory_get()) +
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subbuffer_offset_get();
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vertex_format_converter.convert(data, data, vertex_idx);
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}
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VKContext &context = *VKContext::get();
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BLI_assert(context.shader == unwrap(shader));
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render_graph::VKResourceAccessInfo &resource_access_info = context.update_and_get_access_info();
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VKStateManager &state_manager = context.state_manager_get();
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state_manager.apply_state();
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vertex_attributes_.update_bindings(*this);
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vertex_attributes_.ensure_vbos_uploaded();
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context.active_framebuffer_get()->rendering_ensure(context);
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render_graph::VKDrawNode::CreateInfo draw(resource_access_info);
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draw.node_data.vertex_count = vertex_idx;
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draw.node_data.instance_count = 1;
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draw.node_data.first_vertex = 0;
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draw.node_data.first_instance = 0;
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vertex_attributes_.bind(draw.node_data.vertex_buffers);
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context.update_pipeline_data(prim_type, vertex_attributes_, draw.node_data.pipeline_data);
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context.render_graph.add_node(draw);
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buffer_offset_ += current_subbuffer_len_;
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current_subbuffer_len_ = 0;
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vertex_format_converter.reset();
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}
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VkDeviceSize VKImmediate::subbuffer_offset_get()
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{
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return buffer_offset_;
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}
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VkDeviceSize VKImmediate::buffer_bytes_free()
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{
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return active_resource()->size_in_bytes() - subbuffer_offset_get();
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}
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static VkDeviceSize new_buffer_size(size_t sub_buffer_size)
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{
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return max_ii(sub_buffer_size, DEFAULT_INTERNAL_BUFFER_SIZE);
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}
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std::unique_ptr<VKBuffer> VKImmediate::create_resource(VKContext & /*context*/)
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{
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const size_t bytes_needed = vertex_buffer_size(&vertex_format, vertex_len);
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std::unique_ptr<VKBuffer> result = std::make_unique<VKBuffer>();
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result->create(new_buffer_size(bytes_needed),
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GPU_USAGE_DYNAMIC,
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VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT);
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debug::object_label(result->vk_handle(), "Immediate");
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buffer_offset_ = 0;
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return result;
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}
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} // namespace blender::gpu
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